CN108489633A - Thermometry under temperature measurer and hot environment - Google Patents

Abstract

The present invention provides the thermometry under a kind of temperature measurer and hot environment, the temperature measurer includes：Optical device, for reflecting the light for waiting for that thermometric object is sent out, to form the real image for waiting for thermometric object；Contactless temperature-measuring sensor, for receiving the light, to measure the temperature for waiting for the point on thermometric object corresponding to the point in the real image that the light is formed, and non-contact temperature measuring sensor can move freely in the plane where real image.Temperature measurer of the present invention, which does not need live manual intervention, to accomplish accurate temperature monitoring to crucial station region, solve the problems, such as that the thermometric in the high-risk station of enterprise is dangerous and troublesome in poeration.

Description

Thermometer and temperature measuring method under high temperature environment

technical field

The invention relates to the field of temperature measurement, in particular to a thermometer and a temperature measurement method in a high-temperature environment.

Background technique

At present, manufacturing industries such as metallurgy have certain requirements on temperature, and it is necessary to measure the working temperature to ensure the temperature demand of product production; and these working temperatures are often relatively high, even as high as thousands of degrees, manual measurement will exist Great security risk.

In view of the above-mentioned problems, infrared thermometers that can realize long-distance temperature measurement are widely used at present; but this kind of thermometer also has defects. If you want to obtain the temperature lattice in a certain area, you need to manually It is troublesome to move and select a certain point temperature in the area to be measured, and there will be certain safety hazards in the operation process.

Contents of the invention

In view of this, the present invention aims to propose a thermometer and a temperature measurement method in a high-temperature environment, which can accurately monitor the temperature of key workstation areas without on-site manual intervention, and solve the problem of high-risk workstations in enterprises. Unsafe temperature measurement and troublesome operation.

In order to achieve the above object, technical solution of the present invention is achieved in that way:

A kind of thermometer, described thermometer comprises:

The optical device is used to refract the light emitted by the temperature-measuring object to form a real image of the temperature-measuring object;

The non-contact temperature measurement sensor is used to receive the light to measure the temperature of the point on the object to be measured corresponding to the point in the real image formed by the light, and the non-contact temperature measurement sensor can be located where the real image is located. Free movement in the plane.

Further, the object to be measured and the non-contact temperature sensor are respectively located on both sides of the optical device.

Further, the optical device includes a convex lens, the distance between the convex lens and the object to be measured is greater than one focal length, and the distance between the convex lens and the non-contact temperature sensor is greater than one focal length.

Further, the thermometer also includes a two-dimensional mobile platform, and the non-contact temperature measurement sensor is arranged on the two-dimensional mobile platform.

Further, the thermometer also includes a motor and a motor controller, the motor is connected to the two-dimensional mobile platform, and drives the movement of the two-dimensional mobile platform, and the motor controller is connected to the motor, and controls the operation of the motor.

Further, the motor controller is also connected to a host computer, and the host computer is used to control the motor controller to send motion instructions to the motor.

Further, the thermometer also includes an image acquisition device, the optical device includes a half mirror, part of the light is reflected into the image acquisition device through the half mirror, and the other part passes through the half mirror, and the half mirror The lens and the convex lens work together to make the light form a real image of the temperature-measuring object at the non-contact temperature measuring sensor.

Further, the image acquisition device is also connected to a host computer, and the host computer is used to receive the image acquired by the image acquisition device.

Further, the image acquisition device includes a camera.

Further, the non-contact temperature measuring sensor is also connected to a host computer, the host computer is used to receive the temperature value measured by the non-contact temperature measuring sensor, and judge the temperature value, and the host computer is also connected to an alarm device , the host computer is used to control the alarm device to issue an alarm.

The present invention also provides a method for measuring temperature in a high-temperature environment. The method uses the above-mentioned thermometer for measurement, and the method includes the following steps:

adjusting the distance between the optical device, the non-contact temperature measuring sensor (5) and the temperature-measuring object (1), so that the temperature-measuring object (1) can form a real image at the non-contact sensor (5);

The non-contact temperature measuring sensor (5) is moved so that the non-contact temperature measuring sensor (5) measures the temperature of the measuring point.

Compared with the prior art, the thermometer of the present invention has the following advantages:

(1) The thermometer of the present invention can produce the real image of the temperature-measuring object through the convex lens, and the non-contact temperature-measuring sensor utilizes the characteristics of spectral temperature measurement to measure the temperature on the temperature-measuring object corresponding to the point in the real image. The temperature of the point; and the non-contact temperature sensor can be moved, and the continuous measurement of the temperature of each point on the object to be measured can be realized by moving the non-contact sensor, while ensuring the personal safety of the workers.

(2) The thermometer of the present invention also includes a semi-reflective half-lens and an image acquisition device connected to the host computer. The light emitted by the temperature measuring object, and the half mirror and the convex lens work together to obtain the real image of the temperature measuring object. Use the thermometer to select the point that needs temperature measurement from the image obtained by the image acquisition device, and control the two-dimensional mobile platform to move the temperature sensor through the host computer, which can accurately control the temperature measurement position, and can also realize multi-point continuous measurement. The personal safety of workers is guaranteed.

(3) The temperature measuring method under the high temperature environment of the present invention utilizes a thermometer to realize remote temperature measurement, which not only ensures the accuracy of measurement, but also ensures the personal safety of workers.

Description of drawings

The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Fig. 1 is the structural representation of the thermometer described in embodiment 3 of the present invention;

Fig. 2 is the structural representation of the thermometer described in embodiment 4 of the present invention;

Fig. 3 is the connection structure diagram of each component of the thermometer described in the embodiment of the present invention;

Fig. 4 is a control flow chart of the thermometer described in the embodiment of the present invention.

Explanation of reference signs:

1-object to be measured; 2-half mirror; 3-camera; 4-convex lens; 5-non-contact temperature sensor; 6-two-dimensional mobile platform.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Example 1

A thermometer, comprising: an optical device and a non-contact temperature sensor 5 .

When light is obliquely incident from one transparent medium to another, the propagation direction generally changes, resulting in light refraction. Therefore, when the light emitted by the temperature-measuring object 1 passes through the optical device, light refraction will occur. The optical device can be a convex lens. The other side of the object can form an inverted real image, the smaller the object distance, the larger the image distance, and the larger the real image. In optics, the image formed by the convergence of actual light rays is called a real image, which can be undertaken by a light screen.

The temperature-measuring object 1 and the non-contact temperature-measuring sensor 5 are respectively located on both sides of the convex lens, and the distance between the temperature-measuring object 1 and the convex lens is greater than 1 times the focal length, and the non-contact temperature-measuring sensor 5 is used to receive the light of the real image .

The non-contact temperature measurement sensor 5 measures the temperature of the point on the object to be measured 1 corresponding to the point in the real image formed by the light by measuring the spectral energy of the received real image light. Exemplarily, the non-contact temperature measurement sensor 5 may be a single-point infrared temperature measurement head.

Moreover, the non-contact temperature measurement sensor 5 can move freely in the two-dimensional plane where the real image is located. By moving the non-contact temperature measurement sensor 5, the temperature point to be measured in the real image can be selected, and then the corresponding temperature on the object 1 to be measured can be obtained. point temperature. Wherein, the non-contact temperature measuring sensor 5 can be moved manually, or can be moved by means of a device.

Carry out effect description according to this embodiment below:

The temperature-measuring object 1 is a high-temperature object. According to the imaging principle of the convex lens, the temperature-measuring object 1 and the non-contact temperature measuring sensor 5 are respectively located on both sides of the convex lens. The light emitted by the temperature-measuring object 1 is refracted by the convex lens. One side of the contact temperature sensor 5 forms an inverted object real image. The mobile non-contact temperature measurement sensor 5 uses the principle of spectral temperature measurement to measure the temperature of a point in the real image, which is the temperature of a point on the object to be measured 1 corresponding to the point.

Example 2

A thermometer, on the basis of the above embodiment, also includes a two-dimensional mobile platform 6, the non-contact temperature measurement sensor 5 is located on the two-dimensional mobile platform 6, and the two-dimensional mobile platform 6 drives the non-contact temperature measurement sensor 5 It can move freely in the plane of the real image.

The two-dimensional mobile platform 6 is driven by a motor, and the motor is also connected to a motor controller. The motor controller has different requirements and purposes according to the type of motor and the application occasion of the motor, mainly to control the start, acceleration, operation, deceleration and stop of the motor.

Carry out effect explanation according to this embodiment below:

The motor controller controls the operation of the motor so that the two-dimensional mobile platform 6 drives the non-contact temperature measurement sensor 5 to move freely in the plane where the real image is located, and measures the temperature of the selected temperature measurement point.

Example 3

As shown in Figure 1, a kind of thermometer, on the basis of above-mentioned embodiment, also comprises image acquisition device, upper computer and warning device, image acquisition device can be camera 3, and optical device also includes half mirror half lens 2, And the half-mirror 2 is close to the temperature-measuring object 1; the half-mirror 2 is a special mirror that can transmit half of the light and reflect the other half.

Using the characteristics of the half-mirror 2, the light splitting effect can be realized, so that part of the light emitted by the temperature-measuring object 1 is reflected to the image acquisition device, and the other part of the light is refracted by the half-mirror 2 to reach the convex lens 4, and the convex lens 4 is refracted again Finally, the light forms a real image at the non-contact temperature sensor 5 under the joint action of the convex lens 4 and the half mirror 2, and then the temperature of the light is measured by the non-contact temperature sensor 5.

The image acquisition device can be the camera 3, which is also connected to the host computer, and the image acquired by the camera 3 is transmitted to the host computer through the image transmission system, and the staff selects the temperature measurement point of the object 1 to be measured from the host computer.

The host computer is also connected with the motor controller, and the host computer is used to send motor movement commands to the motor controller. When the staff selects the point to be measured on the host computer, the host computer sends a motion command, and the motor controller controls the motor to run, so that the two-dimensional mobile platform 6 drives the non-contact temperature measurement sensor 5 to move to the point where the temperature measurement is required. and measure the temperature at that point.

The host computer is also connected to an alarm device. When the temperature measured by the non-contact temperature sensor 5 is greater than the preset alarm temperature range, the host computer will control the alarm device to send an alarm, otherwise, no alarm will be issued.

Carry out effect explanation according to this embodiment below:

The light emitted by the temperature-measuring object 1 is first split at the semi-reflective half-lens 2, and a part of the light of the temperature-measuring object 1 is reflected into the camera 3, and the camera 3 feeds back the obtained image to the host computer, and the other part of the light passes through the semi-reflective The refraction of the half mirror 2, and then the refraction of the convex lens 4, finally obtain a real image at the non-contact temperature sensor 5. The operator selects the temperature-measuring point of the object to be measured 1 from the image obtained by the host computer, and then the host computer sends an instruction to the motor controller to make the two-dimensional mobile platform drive the non-contact temperature measurement sensor 5 in the plane where the real image is located Move and measure the temperature of the selected point in the real image. If the measured temperature is greater than the preset alarm temperature range, the alarm device will send out an alarm to remind the staff, if the measured temperature is within the set alarm temperature range, continue to measure the temperature of other points.

Example 4

As shown in Fig. 2, a kind of thermometer, except that the positions of the convex lens 4 and the half-mirror 2 are different from that of the embodiment 3, other settings are the same.

The half mirror 2 is close to the non-contact temperature measuring sensor 5, and the convex lens 4 is close to the temperature-measuring object 1. The light emitted by the temperature-measuring object 1 is first refracted by the convex lens 4, and then split at the half-mirror 2, part of the light is reflected to the camera 3, and the other part is refracted by the half-mirror 2; finally, the non-contact temperature sensor 5 A real image is formed at the place, and the light temperature is measured by the non-contact temperature sensor 5 afterwards.

Carry out effect explanation according to this embodiment below:

The light emitted by the temperature-measuring object 1 is firstly refracted by the convex lens 4, and then the light is split at the half-mirror 2, and part of the light is reflected into the camera 3, and the camera 3 feeds back the obtained image to the host computer, and the other part of the light passes through the semi-reflective half-lens 2. The refraction of the anti-half mirror 2 finally forms a real image at the non-contact temperature sensor 5 . The operator selects the temperature-measuring point of the temperature-measuring object 1 from the image obtained by the host computer, and then the host computer sends an instruction to the motor controller to make the two-dimensional mobile platform 6 drive the non-contact temperature measurement sensor 5 on the plane where the real image is located. Move and measure the temperature of the selected point in the real image. If the measured temperature is greater than the preset alarm temperature range, the alarm device will send out an alarm to remind the staff, if the measured temperature is within the set alarm temperature range, continue to measure the temperature of other points.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. a kind of temperature measurer, it is characterised in that：The temperature measurer includes：

Optical device, for reflecting the light for waiting for that thermometric object (1) is sent out, to form the real image for waiting for thermometric object (1)；

Contactless temperature-measuring sensor (5), it is right to measure the institute of the point in the real image that the light is formed for receiving the light That answers waits for the temperature of the point on thermometric object (1), and non-contact temperature measuring sensor (5) can freely move in the plane where real image It is dynamic.

2. temperature measurer according to claim 1, it is characterised in that：It is described to wait for that thermometric object (1) and contactless temperature-measuring pass Sensor (5) is located at the both sides of optical device.

3. temperature measurer according to claim 2, it is characterised in that：The optical device includes convex lens (4), the convex lens Mirror (4) is more than one times of focal length, the convex lens (4) and contactless temperature-measuring sensor with the distance between thermometric object (1) is waited for The distance between (5) it is more than one times of focal length.

4. temperature measurer according to claim 1, it is characterised in that：The temperature measurer further includes two-dimensional movement platform (6), institute Contactless temperature-measuring sensor (5) is stated to be arranged in two-dimensional movement platform (6).

5. temperature measurer according to claim 4, it is characterised in that：The temperature measurer further includes motor and electric machine controller, Motor is connect with two-dimensional movement platform (6), and drives the movement of two-dimensional movement platform (6), and electric machine controller is connect with motor, and Control motor operating.

6. temperature measurer according to claim 5, it is characterised in that：The electric machine controller is also connected with host computer, host computer For controlling electric machine controller movement instruction is sent out to motor.

7. temperature measurer according to claim 1, it is characterised in that：The temperature measurer further includes image acquiring device, described Optical device includes half-reflecting half mirror (2), and the light part is reflected into image acquiring device, separately through half-reflecting half mirror (2) A part penetrates half-reflecting half mirror (2), and half-reflecting half mirror (2) makes light in contactless survey with convex lens (4) collective effect The real image for waiting for thermometric object (1) is formed at temperature sensor (5).

8. temperature measurer according to claim 7, it is characterised in that：Described image acquisition device is also connect with host computer, institute Host computer is stated for receiving the image that image acquiring device is got.

9. temperature measurer according to claim 1, it is characterised in that：The contactless temperature-measuring sensor (5) is also connected with Position machine, the host computer is used to receive the temperature value that contactless temperature-measuring sensor (5) measures, and judges temperature value, The host computer is also associated with warning device, and the host computer sends out alarm for controlling warning device.

10. the thermometry under a kind of hot environment, it is characterised in that：This method is using any one of claim 1-9 institutes The temperature measurer stated measures, and this method comprises the following steps：

The distance between adjust optical device, contactless temperature-measuring sensor (5) and wait for thermometric object (1) three, make to wait for thermometric Object (1) can form real image at noncontacting proximity sensor (5)；

Mobile contactless temperature-measuring sensor (5) so that the contactless temperature-measuring sensor (5) to measurement point into trip temperature It measures.